_:b57564760	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/30af6422cd27526527c45fcedc0418a6f8388d74/2> .
_:b57564761	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57564760	<http://www.w3.org/ns/oa#hasSelector>	_:b57564761 .
_:b57564761	<http://www.w3.org/ns/oa#exact>	"potassium" .